PracHub
QuestionsExperienceLearningGuidesInterview PrepGreen Card
PracHub

Master your tech interviews with 10,000+ real questions from top companies.

Product

  • Questions
  • Learning Tracks
  • Interview Guides
  • Resources
  • Green Card Tracker
  • Premium
  • Practice with AI agents
  • For Universities

Browse

  • By Company
  • By Role
  • By Category
  • Topic Hubs
  • Interview Experiences
  • SQL Questions
  • AI Coding Questions
  • Compare Platforms
  • Discord Community

Support

  • support@prachub.com
  • (916) 541-4762

Legal

  • Privacy Policy
  • Terms of Service
  • About Us

© 2026 PracHub. All rights reserved.

Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
11.9k
Companies
570
Updated
10.05.2026
11.9k Questions 570 Companies10.05.2026
PLTCHK testimonial
PLTCHK

"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"

_The_TaNk_ testimonial
_The_TaNk_

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

Chris testimonial
ChrisSenior SWE, LinkedIn

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

sleepy33 testimonial
sleepy33

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

Shruti testimonial
ShrutiData Engineer, Salesforce

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

midnightramen testimonial
midnightramen

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

Bianca testimonial
BiancaFrontend Eng, Figma

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."

PLTCHK testimonial
PLTCHK

"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"

_The_TaNk_ testimonial
_The_TaNk_

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

Chris testimonial
ChrisSenior SWE, LinkedIn

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

sleepy33 testimonial
sleepy33

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

Shruti testimonial
ShrutiData Engineer, Salesforce

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

midnightramen testimonial
midnightramen

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

Bianca testimonial
BiancaFrontend Eng, Figma

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."

Showing 20 results
Pinterest logo
Pinterest
Medium
Data Scientist

Decode and Explain Ambiguity in Compression Strings

Scenario Compression library that encodes an array as count-value pairs where value is one digit but count may be many digits. Question Implement deco...

Coding & Algorithms
17
0
63 people solved
Jul 12, 2025
Amazon logo
Amazon
Medium
Software Engineer

Implement tree left/right views via BFS and DFS

Given a binary tree, output the left view and right view: for each depth, the first node visible from the left and the first node visible from the rig...

Coding & Algorithms
3
0
54 people solved
Aug 13, 2025
Robinhood logo
Robinhood
Medium
Backend Engineer Locked

Scale Word-Frequency Processing Beyond One Machine

Design a distributed word-frequency pipeline for inputs too large for one process while preserving exact tokenization and ranking. Cover immutable obj...

System Design
5
0
48 people solved
Jun 13, 2026
Upstart logo
Upstart
Hard
Data Scientist

Explain career moves and defend moat

Interview Prompt: Career Chronology, Competitive Advantage, and Exec Presentation Trade‑offs Context: You are interviewing for a Data Scientist role i...

Behavioral & LeadershipMotivation & FitMarket & Competitive Analysis
12
0
91 people solved
Oct 13, 2025
Adobe logo
Adobe
Medium
Data Scientist

Design Metrics Framework for Adobe Express Performance Evaluation

Design Metrics Framework for Adobe Express Performance Evaluation Metric Framework for Adobe Express Performance Context Adobe Express is a freemium c...

Analytics & ExperimentationMetrics & KPIsUser Behavior & Funnels
6
0
92 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Describe leading through stakeholder conflict and ambiguity

Describe a time you had to push back on a senior stakeholder to stop a rushed launch of a metric/report or experiment you believed was invalid. Includ...

Behavioral & Leadership
10
0
79 people solved
Oct 13, 2025
PayPal logo
PayPal
Easy
Data Scientist

Evaluate smart cart idea and design experiment

Question Instacart is partnering with a local grocery store to introduce a smart cart in the physical store. While shopping in the partner store, a cu...

Analytics & Experimentation
4
0
59 people solved
Oct 10, 2025
Meta logo
Meta
Medium
Data Scientist

Compute feed ad frequency and retention in SQL

Assume today is 2025-09-01. Schema and tiny samples: feed_impressions(impression_id, user_id, impression_time, content_type, feed_position, session_id...

Data Manipulation (SQL/Python)SQLMetrics & KPIs
9
0
71 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist Locked

Design an A/B test for comments UI

This question evaluates experimental design, causal inference, statistical power calculation, variance-reduction techniques, sequential monitoring, an...

Analytics & Experimentation
4
0
37 people solved
Oct 13, 2025
Mithril logo
Mithril
Medium
Software Engineer

Parse code into operation triads IR

Problem: Operation-Triads Parsing (Mini Language) You are given a small, line-based programming language consisting of assignment statements and non-n...

Coding & AlgorithmsParsing & Interpreters
6
0
86 people solved
Feb 12, 2026
Boston Consulting Group logo
Boston Consulting Group
Medium
Data Scientist

Defend MSE over MAE for car prices

Choosing MSE vs. MAE for Car Price Regression (Unscaled USD Target) You are training a regression model to predict car prices in USD. The target varia...

Statistics & MathRegression & Statistical Modeling
14
0
101 people solved
Oct 13, 2025
Google logo
Google
Hard
Data Scientist

Measure outage impact; choose fix vs build

End-to-End Analysis Plan: Investigating Frequent Google Meet Call Drops Context A major enterprise customer reports frequent Google Meet call drops. A...

Analytics & Experimentation
10
0
73 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Write SQL for initiators and French DAU%

You are given the following PostgreSQL tables. Assume all timestamps are UTC and "today" is 2025-09-01. For any reference to "last 7 days," use the in...

Data Manipulation (SQL/Python)
2
1
20 people solved
Oct 13, 2025
Capital One logo
Capital One
Medium
Data Scientist

Maintain target margin with fixed costs

Target Profit Margin With a Mixed-Product Portfolio Context You sell two burger products (classic and vegan) at the same price but with different unit...

Statistics & Math
4
0
58 people solved
Oct 13, 2025
Uber logo
Uber
Medium
Software Engineer Locked

Design structure for bottom-K customers by revenue

This question evaluates data structure design and algorithmic complexity for dynamic order-statistics and update operations, focusing on maintaining c...

Coding & AlgorithmsData Structure Design
8
0
89 people solved
Oct 29, 2025
Microsoft logo
Microsoft
Medium
Software Engineer Locked

Check palindrome and find next larger palindrome

This question evaluates proficiency in string and numeric manipulation, specifically palindrome detection and generation of the next strictly larger n...

Coding & Algorithms
5
0
57 people solved
Jan 3, 2026
Amazon logo
Amazon
Medium
Software Engineer

Compute unique visitors by department

You have two tables: products(product_id, department, category, subcategory) where department > category > subcategory form a parent–child hierarchy, ...

Data Manipulation (SQL/Python)
2
0
27 people solved
Jul 26, 2025
Airbnb logo
Airbnb
Medium
Software Engineer

Describe a flagship project’s architecture and tradeoffs

Behavioral/Leadership: Deep Dive on a Significant Project Context: Onsite software engineering interview. Choose one substantial project you personall...

Behavioral & LeadershipProject Deep DiveSystem Design Fundamentals
12
0
123 people solved
Aug 12, 2025
TikTok logo
TikTok
Medium
Data Scientist

Compute and rank top bad advertisers

SQL on ad safety. Assume the following schema and sample rows. Use ANSI SQL. Today is 2025-09-01; interpret “last 7 days” as 2025-08-26 00:00:00 to 20...

Data Manipulation (SQL/Python)
3
0
18 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Analyze Revenue Shifts to Identify Cannibalization Effects

Analyze Revenue Shifts to Identify Cannibalization Effects Management observes strong revenue growth from one creation_source, such as a channel where...

Analytics & Experimentation
19
0
60 people solved
Jul 12, 2025
Previous1...511512513...597Next
Popular Categories
SQL
Daily Quest

Sign in to earn XP for every problem you solve.

Explore by company

MetaGoogleAmazonAppleMicrosoftNetflixCapital OneTikTokDoorDashUberCoinbaseAirbnbLinkedInSalesforceSnapchatSpotifyPayPalLyftPinterestAnthropicOpenAIDatabricksRipplingJane StreetStripe

Explore by role

Data ScientistSoftware EngineerMachine Learning EngineerProduct ManagerData EngineerData AnalystFrontend EngineerBackend EngineerSite Reliability EngineerTechnical Program Manager

Explore by category

Coding & AlgorithmsSystem DesignMachine LearningML System DesignSQL & PythonAnalytics & ExperimentationBehavioral & LeadershipStatistics & MathProduct / Decision MakingProduct Design & StrategySWE Fundamentals

Popular interview guides

Meta SWEMeta DSMeta PMGoogle SWEGoogle DSGoogle MLEAmazon SWEAmazon DSAmazon DEApple SWEApple MLEMicrosoft SWEMicrosoft DSTikTok SWETikTok DSUber SWEUber DSDoorDash SWEDoorDash DSAirbnb SWEAirbnb DSLinkedIn SWELinkedIn DSNetflix SWECoinbase SWECapital One DSOpenAI SWEAnthropic SWE

Popular question categories

Meta CodingGoogle System DesignAmazon CodingMeta AnalyticsGoogle MLAmazon System DesignCapital One SQLTikTok MLMeta SQLUber AnalyticsDoorDash CodingGoogle CodingNetflix System DesignAirbnb AnalyticsLinkedIn SQL